When I was a kid I had several repeating dreams that I had once a year on a random day, but it's been a long time since I've had any of those. Often times my dreams nowadays have events and/or places/people that are all interconnected in some way or another. It's like I have a big dream world built in my head and my dreams take place in it. Of course not all my dreams fit within it. I've been doing that for some years now too.
